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Celestron

Celestron 18763 PowerTank Lithium LT Telescope Battery Power Pack – Rechargeable Portable 12V Power Supply for Computerised Telescopes with 8 Hour Capacity / 73.3 Wh and 1 USB Port, Black

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Availability: In Stock.
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Arrives Thursday, Mar 12
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Features

  • PORTABLE POWER MADE FOR ASTRONOMERS: The perfect solution for most computerized telescopes, PowerTank Lithium LT features a regulated 12V connection, 8 hours of battery life, a USB port, and more. Mounts directly to the tripod leg.
  • SMALLER, LIGHTER, SAFER: Unique Lithium Nickel Manganese Cobalt Oxide chemistry delivers a steady charge over long periods and requires less maintenance than a traditional sealed lead-acid battery.
  • 5 YEARS OF DEPENDABLE PERFORMANCE: Unlike other batteries with limited lifespans, PowerTank Lithium LT will be your companion for 5 full years of astronomy adventures.
  • WORKS WITH A VARIETY OF DEVICES: 12V connection works with all current Celestron computerized telescopes. Also includes one onboard USB port to charge your smartphone or other USB-powered devices in the field.
  • AN EMERGENCY KIT ESSENTIAL: Keep PowerTank Lithium LT charged and ready for unexpected power outages.
  • UNBEATABLE WARRANTY & SUPPORT: Buy with confidence from Celestron, a leading telescope brand in California since 1960. Your purchase includes a 2-Year US Warranty and unlimited support from our team of US-based experts.

Description

Keep your telescopes, smartphones, tablets, GPS systems, cameras and other USB-powered devices charged and ready with PowerTank Lithium LT—the ideal outdoor portable-charging solution. Celestron specially designed this product with the needs of amateur astronomers in mind; it’s packed with useful features. First, you’ll find a 12V connection for your Celestron telescope—no cigarette lighter port needed. Once your telescope is connected, attach the battery securely to one of the tripod legs with the included Velcro straps so it is safely out of the way. One USB port keeps your other devices charged, and can be used simultaneously with the telescope charger. When you’re not observing, keep this battery charged and at the ready for unexpected emergencies. PowerTank Lithium LT’s unique Nickel Manganese Cobalt Oxide chemistry which delivers a steady charge over long periods and requires less maintenance than a traditional sealed lead-acid battery. It will last you many times longer thanks to its un-recharged shelf life of 10 years and 2000 charge cycle lifespan. But most importantly, the PowerTank Lithium LT can withstand higher temperatures than standard lithium cobalt batteries and will not be a fire danger if accidentally punctured. All this combined with its rugged design make PowerTank Lithium LT the perfect outdoor power supply.

Number of Batteries: 1 Lithium Metal batteries required. (included)


Brand: Celestron


Battery Cell Composition: Lithium-Nickel Manganese Cobalt (NMC)


Battery Capacity: 73.3 Watt Hours


Recommended Uses For Product: Camera, GPS, Phone, Tablet


Product Dimensions: 7.5 x 4 x 2 inches


Item Weight: 1.39 pounds


Item model number: 18763-CGL


Batteries: 1 Lithium Metal batteries required. (included)


Date First Available: October 31, 2019


Manufacturer: Celestron


Language: English


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Much more convenient and powerful than the lead-acid battery Power Tank.
I bought this battery to replace the Celestron Power Tank that I had for over 10 years. That model used a lead acid battery, and it had two USB ports, along with a very bright LED flashlight. Unfortunately, it quit holding a charge. I decided to buy this model because it is smaller, more convenient, and it holds a charge far longer than the previous model. In a recent trip to Joshua Tree National Park to observe the Milky Way, I used this Power Tank to power my telescope, and it performed flawlessly. In fact, I had forgotten to charge it the first night, and it still had plenty of juice leftover for the second night. I highly recommend it. I hope this review helps. ... show more
Reviewed in the United States on August 7, 2025 by Ima Consumer
    • A very reliable CELESTRON battery pack to carry for your telescope.
This is a must have for your evening of viewing the sky. The battery pack is easy to carry and attach to your scope. This lasts many hours. The level indicators are easy to see and the charging time is quick. The value of this is first the price and no more buying AAA batteries that do not last. When you are in the night you want power to light the scope. ... show more
Reviewed in the United States on February 6, 2025 by Tom
    • Quick shipping
Quality item.
Reviewed in the United States on November 8, 2025 by John
    • Excellent Power Source
This proved to be an excellent power source for my Celestron NexStar 8SE. My bulky old power tank (the one that looked like a small suitcase) was no longer holding a charge, so I decided to just go with the 8 AA batteries. Had problems getting the scope aligned, tracking, slewing etc. Apparently it didn't take long for the batteries to lose enough power to start causing problems. Decided to give this thing a try. What a difference! My scope is now operating perfectly. I haven't had this thing long enough to tell you how long it lasts, but I have used it for several nights now without recharging. (Admittedly, I don't stay out more than an hour or so in the winter.) A nice feature: It has indicator lights to let you know the level of charge. In order to avoid cord wrap issues, I velcroed it to the top of the battery compartment. This works great MOST of the time. But in this position, it is thick enough that it can interfere with the scope slewing to an object high in the sky. (Easily remedied by temporarily removing it to the tray below. Just be careful of cord wrap.) Anyway... I am very happy with this product so far, and greatly relieved that my expensive scope is now operating as it should! ... show more
Reviewed in the United States on January 1, 2021 by Loren E. Jackson, Jr.
    • Decent capacity. Awkward strap
Works well. It can power a Skywatcher Wave 100i mount for as long as I can keep my eyes open for a night's stargazing. Regulated output is a plus. But the mounting strap needs to be longer and able to engage along it's full length.
Reviewed in the United States on November 6, 2025 by Ben
    • Good performance
Once I used this power bank for 4 hours-relocating my AVX Go-to a lot because of some troubleshooting. More you relocate between celestial objects, more power consumed by the worm-gear. After 4 hours, only 1 LED bar went off! It means that the charge capacity is large enough to let you mess with your Goto for many hours-perhaps just overnight. I'm not sure which lithium battery it uses yet (if it's a low-quality battery, I will see the 'memory effect' quite quickly) For that, I'll keep observing. Experience until now, it worth spending my money. Side note: If you use AVX or other star-tracking solution, I do recommend checking out the firmware update. You will notice how the worm-gear sounds differently, after the update. As for my AVX+Nexstar Goto, there must have been quite an improvement after the firmware update. ... show more
Reviewed in the United States on May 31, 2020 by Joohyung Park
    • Much better than expected.
I regularly use lithium charging packs, so was expecting this to be similar. It’s not. It’s much beefier/bigger. It is powering a Celestron motorized telescope and since December 25, 2024 until January 17, it’s still at 3 of 4 bars charged on its initial charge. We’ve used the telescope regularly (the new hasn’t worn off yet), and have left it on tracking the moon or planets for hours. It’s well worth the money compared to installing and replacing batteries on the tele. Highly recommend. ... show more
Reviewed in the United States on January 17, 2025 by Charles
    • Great battery!!
I needed a power supply for my Celestron Nexstar 5SE. I thought about getting something with more utility outside of powering a telescope, but decided that I should keep it simple. Plus this has a USB port, which is the most you can ask for without spending $200+ and hours researching trying to find the best battery. I charged it to 100% when I got it about 2-3 months ago. Sadly, it has been extremely cloudy for most of that time and I haven’t been able to use my scope very much. From the time that I’ve had it, this battery has probably been used for 10-12 hours. I just checked it, and I still have 3/4 of the battery indicator lights on! I may have charged it for a minute a while back, I can’t remember. But I’ve used it for hours at a time and never came close to running out of power. Honestly, I think it’s impossible to run out of juice in one night. Great product!! My ONLY gripe is with the strap. It’s too big for the tripod!! It slides down easily. It’s a problem that can be solved, but I don’t see why Celestron would make a strap that doesn’t work with its tripod. ... show more
Reviewed in the United States on April 2, 2020 by S.H.

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